Bumper for motor cars



Feb. 11, 1930. R SUM] ET AL 1,746,502

BUMPER F R MOTOR CARS Original Filed Dec. 29, 1927 Fatentecl Feb. 11,1930 UNITED STATES PATENT OFFICE RIKICHI SUMI, OF OSAKA, AND TAHIRAKTSEII, F KOBE, JAPAN BUMPER non MOTOR cans Application filed December29, 1927, Serial No. 243,455. Renewed January 3, 1930.

The present invention relates to a new type of bumper for motor-carswhich comprlses essentially a rubber tire held firmly in position onthefront or rear buffer spring plate of a motor-car by setting the ribof the tire between the two flanges provided. on the upper and loweredges of the said spring plate. The object of the invention consists insupplying an eflicient means for deadening the shock of collision thatmay occur by accident, so as to minimize, first, the injury to theperson riding in the car, secondly, the damage to the car itself,especially the body, fenders, bonnet,

radiator, head lights, gasoline tank, etc, and

further disadvantage consists in its becoming rusty by washing the carwith water for cleaning, as it is usually nickel-plated.

In the accompanying drawings Fig. l represents a plan of the bufferaccording to the present invention, Fig. 2 a front view of the same,Fig.3 a'partial plan, Fig. 4 a side elevation of transversesection, Fig. 5aside View of the end-plug.

modifications of the invention and in which Fig. 6 represents a plan,Fig. 7 a front view, Flg. 8 a partial plan enlarged and 9 a side View oftransverse section.

or similar parts.

or rear bufler spring plate of a motor car, or the edges of the front orrear spring plate itself may be bent to form the flanges. The

rubber tire 6 is held in place on the supporting plate 3 by means ofribs 5 formed on the tire which are set into the two flanges 5. Therubber tire may be either a solid cylindrical rod or a cylindrical rodwith a hollow space 7 may be used. A plug 8 is attached to each end ofthe tire with suitable agglutinants.

Fig. 6Fig. 9 show some The same numerals 1n the drawings represent thelike Figs. 6-9 represent modifications in which an ordinary pneumatictire 6 is used in place of a solid rubber tire. In this case two ribs 5of the tire are set in the flangesQ. The in nor tube 7 which can beinflated with air by means of a valve 9, is sealed at both ends with theplug 8.

We claim:

-1. A bumper for motor cars comprising a horizontally extending springplate, a rubber tube secured to the outer side of said plate andreaching to the ends thereof, the inner side of the tube and the outerside of the plate being flat and in contact and the opposite edges ofthe plate being flanged and overlapping the adjacent sides of the tube,and a plug sealing each end of said tube.

2.. A bumper for motor cars having a horizontally extending springplate, a rubber tube on the outer side of said plate and extending V tothe ends thereof, the inner side of the tube and the outer side of theplate being flat and in contact and the opposite edges of the platebeing flanged and overlapping the adjacent sides of the tube, meanssecuring said tube at each end to the plate comprising a hollow membersecured to the plate at the end there of and encircling the adjacentportion of the rubber tube, a plug closing each end of said tube and aninflating valve situated at the rear of the plate intermediate the endsthereofland communicating with the interior of the tu e.

In testimony whereof we hereunto aflix our signatures.

RIKICHI SUMI. TAHIRA KISHI.

